【发布时间】：2022-01-22 09:53:59
【问题描述】：
我正在为 Angela Yu 在 Udemy 上的代码训练营开发天气应用程序。一切正常，直到我到达 JSON.parse 行。我不知道为什么会出错。
const https = require("https");
const app = express();
const url = "https://api.openweathermap.org/data/2.5/forecast?appid={API-KEY-OMITED}&units=imperial&zip=97078";
const port = 3000;
app.get('/', (req, res) => {
https.get(url, (response) => {
console.log(response.statusCode);
response.on("data", (data) => {
const weatherData = JSON.parse(data)
console.log(weatherData);
})
})
res.send('server is running!')
})
app.listen(port, () => {
console.log(`Server is running on port ${port}!`);
})
这是我在终端中得到的。
[nodemon] starting `node app.js`
Server is running on port 3000!
200
undefined:1
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SyntaxError: Unexpected end of JSON input
at JSON.parse (<anonymous>)
at IncomingMessage.<anonymous> (C:\Users\pc\documents\webdev\theCompleteWebDevBootcamp-AngelaYu\apis\weatherproject\app.js:13:38)
at IncomingMessage.emit (node:events:390:28)
at IncomingMessage.Readable.read (node:internal/streams/readable:527:10)
at flow (node:internal/streams/readable:1012:34)
at resume_ (node:internal/streams/readable:993:3)
at processTicksAndRejections (node:internal/process/task_queues:83:21)
[nodemon] app crashed - waiting for file changes before starting...
【问题讨论】：
-
是的，错误是有道理的。您正在尝试仅解析整体响应的一小部分。
标签： javascript node.js json server